img=cv2.imread('G:\image\school1.png')
print('ing.shape:',img.shape)
rows=ing.shape[0]
cols=img.shape[1]
channel=img.shape[2]
print('rows=%d,cols=%d,channel=%d%'(rows,cols,channel))
print("size=", img.size)
print("dttype=",img.dtype)